4 Wire Trailer Plug Diagram. The ground to the bike can be a trailer ball ground or a single wire with a male/female connector to join the ground to the bike seperately from your main connector. Referring to a wiring diagram for a trailer comes in handy during installation.
The plugs and wiring are universal to all vehicles and if you clean the plug and look you will see the proper wiring for the plug.
With this system, you have four wires that work together with the vehicle's electrical system via a plug connector.
Find the trailer light wiring diagram below that corresponds to your existing configuration. The white wire is your ground wire, which must be cut short and attached Cut the white wire short enough for attachment to the front of the trailer near the connector plug. So here I have an older trailer which needed some work Perhaps you want to add clearance lights, extended the plug length at the tongues end, change out And the third diagram using clearance lights.







